For a solar eclipse to occur,
a.
the sun must be directly between earth and the moon.
b.
the moon must be directly between earth and the sun.
c.
the moon must be directly behind earth.
d.
earth must be directly between the sun and the moon.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

Which statement best explains the relationship between an area is geography and the temperature of its surface water